河口海岸物质输运时间尺度研究进展  

Advances in study of substances transport timescales in estuarine and coastal areas

作　　者：张琴 杨洁[2] 陶建峰[2] 张长宽[2] 张晓 

机构地区：[1]上海勘测设计研究院有限公司,上海200434 [2]河海大学港口海岸与近海工程学院,江苏南京210098

出　　处：《水利水电科技进展》2017年第6期88-94,共7页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金(51409093)

摘　　要：从物质输运时间概念、研究方法及应用方面综述了近年来河口海岸物质输运时间尺度的研究进展,论述了目前物质输运时间尺度主要数学模型的优点和局限性,着重讨论了基于物质组成的年龄和存留时间(CART)理论的研究进展。针对当前非保守性物质输运时间尺度研究中存在的不足,指出易被泥沙吸附的污染物的输运时间尺度需要考虑其与泥沙的相互作用过程,加强非保守性物质、泥沙和易被泥沙吸附的污染物输运时间尺度研究有助于全面了解复杂物质的输运规律;CART理论应拓展应用于计算非保守性物质、泥沙和考虑泥沙影响的污染物输运时间尺度的研究。Research progresson the transport timescales of substances in estuaries and coastal areas in recent years was reviewed from three aspects,including the concepts,the research methods and the applications of transport timescales. The advantages and limitations of the current mathematical models for the computation of substance transport timescales,especially the progress of the constituent-oriented age and residence time（CART） theory are discussed emphatically in this paper. Aiming at the shortcomings of the current non-conservative substance transport timescales,it is pointed out that the interaction between adsorptive pollutants and suspended particles should be considered to describe the transport timescales completely. Strengthening the study on the transport timescales of non-conservative materials,sediments and adsorptive pollutants will help to reveal the transport characteristics of complex substances. The CART theory should be applied to calculate the transport timescales of non-conservative substances,sediments and the pollutant transport process that considers the interaction with sediments.

关 键 词：物质输运 污染物 泥沙 时间尺度 河口 海岸 

分 类 号：P343.5[天文地球—水文科学] P731.2[天文地球—地球物理学] X14[环境科学与工程—环境科学]